Thunderstriker
Weapon (light hammer), uncommon (requires attunement)
When you hit a creature with this hammer, it takes an extra 1d4 thunder damage on a melee hit, or an extra 1d8 thunder damage on a ranged hit.
When you attempt to make a ranged attack by throwing this weapon, you gain +1 to the attack roll.
This hammer has 3 charges and regains all expended charges daily at dawn.
Sonic Bang. As an attack action, you can expend 1 charge to hit the air in front of you and generate a damaging thunder wave. All creatures other than you within 10 feet must make a DC 13 Constitution saving throw, taking 1d8 thunder damage on a failed save, or half as much on a successful one.
Loyal Imprint. While a creature is attuned to this hammer, if a non-attuned creature holds this weapon at the end of its turn, it must make a DC 13 Constitution saving throw or take 2d6 thunder damage and drop it. If this hammer has any charges left when a creature takes damage from this effect, it automatically expends 1 charge to deal an additional 2d8 thunder damage to the creature.

